<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>111</title>
</head>
<!-- ctrl+? 注释 -->
<body>
    <h1 align="center">zheshi</h1>
    <h2 align="right">zheshi 2</h2>
    <h3 align="left">zzz</h3>
    <h4>xx</h4>
    <h5>444</h5>
    <h6>555</h6>
    <!-- 标题标签 -->
    <p>232</p>
    <!-- 段落标签 -->
    <span>文本</span>
    <!-- 文本标签 --> 
    <hr>
    <!-- 水平线标签 -->
    <hr size="20px" color="green">
    dhdh <br>
    fff
    <!-- 强制换行 -->
</body>
</html>
